Jailhouse Letters Could Hurt Casey Anthony She knew details about crime scene By Nick McMaster, Newser Staff Posted Apr 7, 2010 4:40 PM CDT 16 comments Comments Casey Anthony looks at prosecutor Linda Drane Burdick during a hearing Friday, October 16, 2009, at the Orange County Courthouse. (AP Photo/Red Huber, Pool) (Newser) – Letters written by Casey Anthony to another inmate may become evidence in support of prosecutors' claim that the young mother murdered her 2-year-old daughter. In one, Anthony wrote that Zenaida Gonzalez, the supposed babysitter Anthony said kidnapped Caylee, did not exist. In another, Anthony cites details about the crime that police say only the killer could know, reports AOL News. Anthony's attorneys, who viewed the letters before they were released yesterday, deny they show any incrimination. Alongside damaging information, the letters also contain expressions of love for Caylee. "I was a great mom," Anthony wrote. "I love my daughter with everything that I have. I would give my life to have her back even for five minutes."